A system, including a device and method, for securing a covering, such as a coverlet, quilt, duvet or comforter to a bed, and a kit and method for applying the system to an existing bed and covering. A sleeve encircles the mattress and includes an engagement structure on its lower surface. The covering includes a tab which fits beneath the mattress and its support structure and further includes a second engagement structure which faces upwardly to engage the engagement structure on the sleeve. A kit includes just a sleeve and a tab with a structure for engagement to a covering.